GRAS 12BC, 12BF and 12BD LEMO Power Modules with TEDS Support

Power modules

Connection: LEMO
Traditional 200 V
Channel(s): 1, 2 or 4
TEDS via USB

GRAS 12BC, 12BF and 12BD are 1-, 2- and 4-channel LEMO power modules, respectively. They have TEDS support and can be powered by USB or AC mains (included).

Technology

The GRAS 12BC, 12BF and 12BD  are, respectively, single- two- and four-channel USB-powered LEMO power modules with TEDS support.

These power modules provide power to microphone sets without signal degradation, gain modification, or attenuation.

This series excells as a simple and cost-effective interface between TEDS-enabled measurement microphones and any Audio Precision APx series analyzer, which will automatically extract TEDS data for seamless integration.

However, these power modules can also be used with other brands. In this case, a utility program provides access to TEDS data on a PC. This utility program can be downloaded here.

Power for 12BC, 12BF and 12BD is provided through a USB cable if the port can supply a minimum of 1.5 A that is required by the module. Power can be supplied via a USB 2.0 or USB 3.0 port connected to a USB-C port on the power module or AC mains power through the AUXPWR port if the minimum 1.5 A is not available through the USB-C port.

If more channels are needed, multiple power modules can be used concurrently.

Specifications

Frequency response (±0.06 dB) (with 100 kΩ load)
Hz
10 to 20
Frequency response (±0.03 dB) (with 100 kΩ load)
Hz
20 - 200k
Inherent noise, input shortet, 10 Hz - 20kHz
µVrms
2
Overload indication
No
Temperature operation
°C / F
0 to +45 / 32 to 1113
Temperature range, storage
°C / °F
-40 to +75 / -40 to 167
Humidity (non-condensing)
%
max. 90
Dimension including mounting ears (WxHxD)
mm / "
108 x 44.2 x 178.3 / 4.35 x 1.74 x 7.02
Channels, 12BC
1
Channels, 12BF
2
Channels, 12BD
4
Polarization voltage
V
200
Preamplifier Supply Voltage
Vdc
+/-15
Max input Voltage
Vp
14
USB
C
USB Power + 5 Vdc
A
1.5
External Power Supply +5 Vdc
A
1.5
External Power Connector
DC (5.5mm x 2.1 mm barrel)
Weight 12BC, 1 Ch
g / oz
390 / 13.8
Weight 12BF, 2 Ch
g / oz
425 / 15.0
Weight 12BD, 4 Ch
g / oz
494 / 17.4

Dimensions

Ordering info

GRAS 12BC1-Channel LEMO Power Module with USB Connection
GRAS 12BF2-Channel LEMO Power Module with USB Connection
GRAS 12BD4-Channel LEMO Power Module with USB Connection

Included

-USB Cable
-AC mains power adapter

Optional

Extension cables with 7-pin LEMO connectors

GRAS AA0008LEMO 7-pin-LEMO 7-pin cable, 3 m
GRAS AA0009LEMO 7-pin-LEMO 7-pin cable, 10 m
GRAS AA0012LEMO 7-pin-LEMO 7-pin cable, 30 m
GRAS AA0014LEMO 7-pin-LEMO 7-pin cable, 100 m
GRAS AA0020-XXCustom, XX specifies the length in metres

Extension cables with BNC connectors

GRAS AA0033BNC-BNC cable, 1 meter
GRAS AA0034BNC-BNC cable, 2 meters
GRAS AA0035BNC-BNC cable, 3 meters